Renpho MCP Server

A Model Context Protocol (MCP) server that provides access to body composition data from Renpho smart scales. Query your weight, body fat, muscle mass, and other health metrics directly from Claude, Cursor, or any MCP-compatible client.

Features

Body Composition Data: Weight, BMI, body fat %, muscle mass, water %, bone mass, visceral fat, metabolic age, BMR, and more
Weight Trends: Track changes over customizable time periods (7-365 days)
Health Classifications: Automatic BMI, body fat, and visceral fat category assessments
Measurement History: Access historical data with filtering options
Secure: Credentials stored as environment variables, never logged

Requirements

Node.js 18+
A Renpho Health account with connected smart scale
Important: This works with the Renpho Health app (blue icon), not the legacy Renpho app

Installation

git clone https://github.com/StartupBros/renpho-mcp-server.git
cd renpho-mcp-server
npm install
npm run build

Configuration

Create a .env file (or set environment variables):

RENPHO_EMAIL=your-email@example.com
RENPHO_PASSWORD=your-password

Claude Code

Add to your MCP settings (~/.claude/settings.json or project .claude/settings.json):

{
  "mcpServers": {
    "renpho": {
      "command": "node",
      "args": ["/path/to/renpho-mcp-server/dist/index.js"],
      "env": {
        "RENPHO_EMAIL": "your-email@example.com",
        "RENPHO_PASSWORD": "your-password"
      }
    }
  }
}

Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "renpho": {
      "command": "node",
      "args": ["/path/to/renpho-mcp-server/dist/index.js"],
      "env": {
        "RENPHO_EMAIL": "your-email@example.com",
        "RENPHO_PASSWORD": "your-password"
      }
    }
  }
}

Available Tools

Tool	Description
`get_latest_measurement`	Most recent body composition reading
`get_body_composition`	Detailed composition with health classifications
`get_weight_trend`	Weight change analysis over N days
`get_measurements`	Historical measurements with date filtering
`get_current_user`	User profile information
`health_check`	Verify API connection status

Example Usage

Once configured, ask Claude:

"What's my current weight and body composition?"
"Show my weight trend over the last 90 days"
"How has my body fat percentage changed this year?"
"Get my last 10 measurements"

Technical Notes

Uses the Renpho Health API (cloud.renpho.com), not the legacy API
Implements AES-128-ECB encryption for API communication
Handles JavaScript BigInt precision for large user IDs
Caches authentication tokens (50 min) and measurements (5 min) to reduce API calls

Privacy

Credentials are only used to authenticate with Renpho's API
No data is stored permanently or sent to third parties
All communication uses HTTPS

Credits

API reverse engineering based on RenphoGarminSync-CLI by forkerer.

License

MIT

renpho-mcp-server